Good backup saved a company

We got a call from a end user saying that the day before he got a virus on hos screen, he ignore and went home, the next day he reported and we discover he got cryptolocker and encrypted 1 TB of data on a network drive.

We react immediate, we disconnected the computer and checked the network drive, nothing to do, just renamed the old shared folder and begin to restore from backup, took several days to restore the data.

What would happen if the company would not have a good backup, this situation could kill the company and would lost the businesses. Lesson learned:

Have a good backup

Test the backups

Having a good backup is easy and the cost is low, the ROI is very high.